Search a number
-
+
31141335041 = 173180007717
BaseRepresentation
bin11101000000001010…
…110001000000000001
32222101021220201201022
4131000022301000001
51002234140210131
622150042515225
72151465660155
oct350012610001
988337821638
1031141335041
1112230520a33
126051205b15
132c2398918b
141715c67065
15c23e2737b
hex7402b1001

31141335041 has 4 divisors (see below), whose sum is σ = 31321342932. Its totient is φ = 30961327152.

The previous prime is 31141335019. The next prime is 31141335061. The reversal of 31141335041 is 14053314113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14053314113 = 16386216651.

It can be written as a sum of positive squares in 2 ways, for example, as 26853704641 + 4287630400 = 163871^2 + 65480^2 .

It is a cyclic number.

It is not a de Polignac number, because 31141335041 - 26 = 31141334977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31141335041.

It is not an unprimeable number, because it can be changed into a prime (31141335061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90003686 + ... + 90004031.

It is an arithmetic number, because the mean of its divisors is an integer number (7830335733).

Almost surely, 231141335041 is an apocalyptic number.

It is an amenable number.

31141335041 is a deficient number, since it is larger than the sum of its proper divisors (180007891).

31141335041 is a wasteful number, since it uses less digits than its factorization.

31141335041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180007890.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 31141335041 its reverse (14053314113), we get a palindrome (45194649154).

The spelling of 31141335041 in words is "thirty-one billion, one hundred forty-one million, three hundred thirty-five thousand, forty-one".

Divisors: 1 173 180007717 31141335041